STMPE1801BJR STMicroelectronics, STMPE1801BJR Datasheet - Page 28

• Manufacturer Part Number: STMPE1801BJR
• Description: Touch Screen Converters & Controllers Xpander Logic 18-Bit 18 GPIO 1.65 to 3.6V
• Manufacturer: STMicroelectronics

Specifications of STMPE1801BJR

• Rohs: yes
• Input Type: 1 Keypad
• Data Rate: 400 kbps
• Resolution: 18 bit
• Interface Type: I2C
• Supply Voltage: 1.65 V to 3.6 V
• Supply Current: 28 uA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: CSP-25
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.65 V

Interrupt system
INT_STA
Address:
Type:
Reset:
Description:
28/60
15
R
0
14
R
0
[15:4] RESERVED
13
R
0
[4:0] IS[x]
12
INT_STA_HIGH
R
0
08, 09
R
0x00
The interrupt status register monitors the status of the interruption from a particular
interrupt source to the host. The INT_STA bits are constantly updated regardless
whether the INT_EN bits are enabled or not.
Interrupt status (where x = 3 to 0)
Read:
IS0: Wake-up interrupt status
IS1: Keypad controller interrupt status
IS2: Keypad controller FIFO overflow interrupt status
IS3: GPIO controller interrupt status
IS4: Combination key interrupt status
Reading the INT_STA register clears all interrupt status bits to ‘0’ which had been set to ‘1’
prior to the read event.
11
R
0
10
R
RESERVED
0
R
9
0
Doc ID 17884 Rev 3
R
8
0
R
7
0
R
6
0
R
5
0
INT_STA _LOW
IS4
R
4
0
Interrupt status register
IS3
R
3
0
IS2
R
2
0
STMPE1801
IS1
R
1
0
IS0
R
0
1